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It's dead easy if you have a degree in computer science. Others might find it a bit more tricky, depending on how much research they want to do, their wiringskills and how much time they want to spend fine tuning the code in the settings. It's not a plug-and-play solution. All the CA does is...

Some of my guitars cost thousands but my favourite one that I played every day for 5 years cost me £60 from EBay. I upgraded the pickups and bridge and put a Gibson logo sticker over the Chinese brand name. Everybody else that played it thought it was a real Gibson and told me why it was worth...

That depends on setting P3. P3=1 is current control. P3= 0 is speed control. You want P3=1. The throttle can be a bit weird with P3=1. I think there are different software versions. I think the most common is that you get fully independent proportional speed control as long as you don't pedal...

Can you explain in more detail what you want to do with the throttle. Are you saying that there's no throttle at the moment or you want to change one for a different one. If you have one, show a photo because different throttles have different technical issues. Also, show us a picture of your...

Nice. did you have to spread the forks a bit? Normally, forks without inboard drop-outs rub on the motor. Why couldn't you put the controller in the compartment provided with the battery?

Another happy ending. I'll sleep better tonight. Always switch the charger on before plugging into the battery. That makes the voltages on the jack and socket much closer and stops the inrush into the charger, which causes a spark that can damage the connector and blow the fuse.

I used to test every new ebike motor that came out to satisfy my curiosity and to provide content for the ebike forums. Since I found ebike nirvana with a Q128C, I don't do it so much now. The GNG motor uses a standard pedal sensor and controller, so you can choose whatever you want. The...

Whenever a charger won't charge, you should measure the voltage on the charger jack and the battery's charge socket. those two results will give you a good clue to what's going on. If there's no voltage on the charge socket, the battery's charge fuse has blown or there's some other connection...

Don't forget to think about security if you're going to leave it parked in the same place every day.

I have one thought, which you're not going to like. you should have spent more time doing it than researching it. It sounds like you've hyped yourself up into a state where you're scared to do anything. Either you want assistance or you don't. Fit a cheap hub-motor system, switch it on when you...

Q100H is Bafang has changed the designation of it's motors. a lot of resellers don't use that number. Also, there are loads of clones, which are probably just as good. Have a look what's on Aliexpress

I wouldn't want to dish it any further than that. If it's touching the left stay, all you need to do is move the anti-rotation washer inboard of the drop-out where it's supposed to be. If that's too much, just put a normal 12mm washer on the axle inside the drop-out.

Please show photos of what you have: the whole batteries, the different bases and the viwe of the connectors on the bottom of the battery. I might be able to offer a solution if your husband can solder some wires.

Show some photos of the whole bike and the various electrical parts, especially any control panels or switches.

Just in case you didn't see it, I edited my post above. Sounds like you didn't setup your KT controller properly. there's a setting to switch between speed control and current control. Many people on the forum that theirs were supplied set to speed control, which is daft because current control...

You're going to need a 52T chainwheel unless you like pedalling like a BMX rider in the world championships. Why don't you sort out your hub-motor? What you're describing isn't normal regarding drag. The HESC motors have a clutch that completely disengages the motor and internal gears from the...

It's mainly the cassette motors. The large spline on one side means that if the overall width would be narrower, either the centre would be off-set too far to be able to build a wheel with tight spokes or the motor would be too narrow to produce enough power. You get the same problem if you fit...

I've never seen nor heard of that after working on electric bikes and being on this forum for 10 years. Have you seen it? On the other hand, virtually every rear motor that I've installed has required some dishing to get it central. Some kit suppliers lace their rims central. Those wheels...

We could sort it out in 5 minutes if we knew what the problem is.

Turn your bike upside down and stand behind it. Look at the line of the wheel compared with the rest of the bike. Is the whole of the wheel offset to the left of centre (right when upside down)? If so, you need to add some dish to the wheel. Take a photo of it if you can.